An undated photo shows Chinese athlete Zhang Guowei posing for photos in front of an Olympic five-ring symbol. Zhang Guowei is a Chinese track-and-field athlete who specializes in vault. Zhang broke China's record in men's vault in a national tournament in 2013. He failed to qualify for men's vault final at the 2016 Rio Olympics. But the moves and faces he made during matches soon made him a sensational figure across China online. [Photo: weibo.com]
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